Floating ball type expansion bottom valve

Abstract

The utility model discloses a kind of float ball type telescopic bottom valves, the kind of float ball type telescopic bottom valve, including valve body, the bottom of the valve body is fixed with base, the inside threaded sleeve of the base is fixed with locating bolt.The utility model provides a kind of float ball type telescopic bottom valve is set by setting closure plug, when valve is opened, fluid can flow to the inside of discharge groove by base, fluid can promote closure plug to lift and flow to the inside of valve body at this time, so that float ball can be suspended by telescopic rod to drive closure plug continuously when floating, so that fluid can be stable to flow, so that when valve is closed, float ball can be suspended by telescopic rod to drive closure plug to be stably sleeved in discharge groove when being affected by gravity, so as to reach the closure effect of discharge groove, promote the fluid reflux in valve body to be able to be tightly extruded to closure plug, and then greatly improve the sealing effect inside when bottom valve is closed.

Description

Technical Field

[0001] This utility model relates to the technical field of float-type telescopic bottom valve, specifically a float-type telescopic bottom valve. Background Technology

[0002] In fluid transport systems, a foot valve is a critical control component installed at the lowest point of a pipeline. Its main function is to prevent fluid from flowing back into the pipeline due to gravity or pressure, while allowing fluid to flow into the pipeline in one direction. Traditional foot valves are widely used in water supply and drainage, agricultural irrigation, industrial circulating water systems, and chemical processes. They are core components that ensure stable system operation and prevent backflow of media that could cause equipment damage or process failure.

[0003] Typically, most existing foot valve floats are made of metal, making it difficult for the float to completely seal against the drain outlet when it descends. This results in weak sealing inside the ball valve, which in turn makes it prone to fluid backflow. Utility Model Content

[0004] The purpose of this invention is to provide a float-type telescopic bottom valve to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a float-type telescopic bottom valve, including a valve body, a base fixedly sleeved on the bottom of the valve body, a positioning bolt threaded inside the base, a sealing gasket movably sleeved on the outside of the positioning bolt, a discharge groove opened at the bottom of the inner cavity of the base, a float ball movably sleeved inside the valve body, a telescopic rod fixedly connected to the bottom of the float ball, a sealing plug fixedly connected to the bottom of the telescopic rod, and a limit mechanism provided on the outside of the float ball.

[0006] Preferably, the sealing plug is made of rubber and is adapted to the discharge groove, and the front shape of the sealing plug is conical.

[0007] Preferably, the number of positioning bolts is four, and the four positioning bolts are evenly distributed around the base at the bottom of the valve body.

[0008] Preferably, the sealing gasket is made of rubber and is movably fitted onto the bottom of the valve body.

[0009] Preferably, the limiting mechanism includes a limiting sleeve, which is fixedly connected to the side of the float ball, and a limiting rod is fixedly sleeved inside the valve body, with the limiting sleeve movably sleeved inside the limiting rod.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: This float-type telescopic bottom valve, by setting a sealing plug, allows fluid to flow through the base into the discharge groove when the valve is opened. At this time, the fluid pushes the sealing plug to rise and flow into the valve body, so that when the float floats, it can drive the sealing plug to remain suspended through the telescopic rod, thereby allowing the fluid to flow stably. When the valve is closed, the float, under the action of gravity, can drive the sealing plug to be stably fitted inside the discharge groove through the telescopic rod, thereby achieving the sealing effect of the discharge groove. When the fluid inside the valve body flows back, it can tightly squeeze the sealing plug, thereby greatly improving the sealing effect inside the bottom valve when it is closed.

[0011] In addition, this float-type telescopic bottom valve also has a limiting mechanism. When the float moves the sealing plug up and down through the telescopic rod, the limiting rod can limit the up and down movement of the float through the limiting sleeve, that is, limit the up and down movement of the sealing plug. This avoids the problem of the sealing plug swinging and shaking when the float moves up and down, which leads to low stability of the fluid flow inside the base, thereby improving the stability of the fluid flow rate inside the bottom valve. Attached Figure Description

[0012] Figure 1 A schematic diagram of a preferred embodiment of a float-type telescopic bottom valve provided by this utility model;

[0013] Figure 2 This is a front view of the structure of this utility model;

[0014] Figure 3 This is an exploded view of the structure of this utility model.

[0015] In the diagram: 1. Valve body; 2. Base; 3. Positioning bolt; 4. Sealing gasket; 5. Discharge groove; 6. Float ball; 7. Telescopic rod; 8. Sealing plug; 9. Limiting mechanism; 91. Limiting sleeve; 92. Limiting rod. Detailed Implementation

[0016] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0017] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0018] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0019] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Please see Figure 1-3 An embodiment of this utility model provides: a float-type telescopic bottom valve, including a valve body 1, a base 2 fixedly sleeved at the bottom of the valve body 1, a positioning bolt 3 threaded inside the base 2, a sealing gasket 4 movably sleeved outside the positioning bolt 3, a discharge groove 5 opened at the bottom of the inner cavity of the base 2, a float ball 6 movably sleeved inside the valve body 1, a telescopic rod 7 fixedly connected to the bottom of the float ball 6, a sealing plug 8 fixedly connected to the bottom of the telescopic rod 7, and a limit mechanism 9 provided outside the float ball 6.

[0022] The sealing plug 8 is made of rubber and is compatible with the discharge groove 5. The front of the sealing plug 8 is conical. By setting the sealing plug 8, when the valve is opened, the fluid can flow through the base 2 into the discharge groove 5. At this time, the fluid can push the sealing plug 8 to rise and flow into the valve body 1. When the float ball 6 floats, it can drive the sealing plug 8 to remain suspended through the telescopic rod 7, so that the fluid can flow stably. When the valve is closed, the float ball 6 is subjected to gravity and can drive the sealing plug 8 to be stably fitted into the discharge groove 5 through the telescopic rod 7, thereby achieving the sealing effect of the discharge groove 5. When the fluid inside the valve body 1 flows back, it can tightly squeeze the sealing plug 8, thereby greatly improving the sealing effect inside when the bottom valve is closed.

[0023] There are four positioning bolts 3, which are evenly distributed around the base 2 at the bottom of the valve body 1. By setting the positioning bolts 3, when the bottom valve needs to be disassembled for maintenance, rotating the positioning bolts 3 will cause the base 2 to separate from the valve body 1, so that the float ball 6 can drive the telescopic rod 7 and the sealing plug 8 to be removed from the inside of the valve body 1, thereby achieving the effect of quick disassembly of the float ball 6, which brings convenience to the disassembly and maintenance of the bottom valve.

[0024] The sealing gasket 4 is made of rubber and is movably fitted onto the bottom of the valve body 1. By setting the sealing gasket 4, when the bottom valve needs to be reassembled after maintenance, the sealing gasket 4 is fitted onto the bottom of the valve body 1. At this time, the positioning bolt 3 is rotated, so that the positioning bolt 3 can drive the sealing gasket 4 to be tightly pressed against the bottom of the valve body 1 through the base 2, thereby filling the gap between the valve body 1 and the base 2, thus improving the sealing performance of the bottom valve.

[0025] The limiting mechanism 9 includes a limiting sleeve 91, which is fixedly connected to the side of the float ball 6. A limiting rod 92 is fixedly sleeved inside the valve body 1, and the limiting sleeve 91 is movably sleeved inside the limiting rod 92. By setting the limiting mechanism 9, when the float ball 6 drives the sealing plug 8 to rise and fall through the telescopic rod 7, the limiting rod 92 can limit the up-and-down movement of the float ball 6 through the limiting sleeve 91, that is, limit the up-and-down movement of the sealing plug 8. This avoids the problem that the sealing plug 8 swings and shakes when the float ball 6 rises and falls, resulting in low stability of the fluid flow rate inside the base 2, thereby improving the stability of the fluid flow rate inside the bottom valve.

[0026] Working principle: When the valve is opened, fluid flows through the base 2 into the discharge trough 5. This fluid pushes the sealing plug 8 upwards, allowing it to flow into the valve body 1. The floating ball 6 floats and, through the telescopic rod 7, continuously suspends the sealing plug 8, ensuring stable fluid flow. When the valve is closed, the floating ball 6, under the influence of gravity, uses the telescopic rod 7 to securely engage the sealing plug 8 within the discharge trough 5, achieving a sealing effect. This allows the fluid inside the valve body 1 to flow back and tightly compress the sealing plug 8, significantly improving the sealing effect when the bottom valve is closed. When the bottom valve needs to be disassembled for maintenance, rotating the positioning bolt 3 separates the base 2 from the valve body 1, allowing the floating ball 6 to pull the telescopic rod 7 and the sealing plug 8 out of the valve body 1, thus achieving rapid... The quick disassembly effect facilitates the disassembly and maintenance of the bottom valve. When the bottom valve needs to be reassembled after maintenance, the sealing gasket 4 is fitted onto the bottom of the valve body 1. At this time, the positioning bolt 3 is rotated, so that the positioning bolt 3 can drive the sealing gasket 4 to be tightly pressed against the bottom of the valve body 1 through the base 2. This allows the sealing gasket 4 to fill the gap between the valve body 1 and the base 2, thereby improving the sealing performance of the bottom valve. When the float ball 6 drives the sealing plug 8 to rise and fall through the telescopic rod 7, the limiting rod 92 can limit the up and down movement of the float ball 6 through the limiting sleeve 91, that is, limit the up and down movement of the sealing plug 8. This avoids the problem of the sealing plug 8 swinging and shaking when the float ball 6 rises and falls, resulting in low fluid flow stability inside the base 2. This improves the stability of the fluid flow rate inside the bottom valve. The contents not described in detail in this description are existing technologies known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A float-type telescopic bottom valve, characterized in that: The valve includes a valve body, a base fixedly sleeved at the bottom of the valve body, a positioning bolt threaded inside the base, a sealing gasket movably sleeved on the outside of the positioning bolt, a discharge groove opened at the bottom of the inner cavity of the base, a float ball movably sleeved inside the valve body, a telescopic rod fixedly connected to the bottom of the float ball, a sealing plug fixedly connected to the bottom of the telescopic rod, and a limit mechanism provided on the outside of the float ball.

2. The float-type telescopic bottom valve according to claim 1, characterized in that: The sealing plug is made of rubber and is compatible with the discharge groove. The front of the sealing plug is conical.

3. A float-type telescopic bottom valve according to claim 1, characterized in that: The number of positioning bolts is four, and the four positioning bolts are evenly distributed around the base at the bottom of the valve body.

4. A float-type telescopic bottom valve according to claim 1, characterized in that: The sealing gasket is made of rubber and is movably fitted onto the bottom of the valve body.

5. A float-type telescopic bottom valve according to claim 1, characterized in that: The limiting mechanism includes a limiting sleeve, which is fixedly connected to the side of the float ball. A limiting rod is fixedly sleeved inside the valve body, and the limiting sleeve is movably sleeved inside the limiting rod.

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